Pilatus PC-6 (Porter & Turbo Porter)

The pilot was performing the initial takeoff, when he observed a loss of power, associated with a torque indication of zero. He force landed the aircraft in a wooded area when he could not make an open field. A post accident inspection of the engine revealed that the fuel control unit arm was loose, and the lock wire was not in place. The arm was positioned so that a maximum power demand from the throttle would correspond to an idle power demand at the fuel control. The engine underwent a 100 hour inspection, by company maintenance personnel, 8 days prior to the accident. The inspection checklist called for examining the fuel control linkage for security.

While descending to Mitú-Fabio Alberto León Bentley Airport, the crew encountered poor visibility due to bad weather. On final, the single engine aircraft was too low, struck trees and crashed short of runway. All three occupants were killed.

Aircraft was performing a routine administrative flight from Awsard to Agwanit with one UN Field Service generator technician, one Australian Signals Contingent doctor, one Swiss Medical Unit nurse and a Swiss Medical Unit pilot, all serving as members of MINURSO, the Mission of the UN in Western Sahara. On takeoff, pilot encountered an unspecified problem which caused the aircraft to roll to starboard and crash near the runway, the verges of which were heavily sown with landmines. Two of the four occupants were killed on impact and one died of injuries soon after. The Swiss nurse survived with critical injuries and was medevac first to Gran Canaria, then to Switzerland.

Shortly after takeoff from Pastaza Airport, while climbing to a height of 200 feet, the engine lost power. The crew elected to return for an emergency landing when the aircraft stalled and crashed in a cemetery. One of the pilot was killed while 10 other occupants were injured, some seriously.

The single engine aircraft was completing a flight from Buochs AFB to Sion, carrying to employees of the Federal Military Department and one pilot. While approaching the Finsteraarhorn mountain, the pilot encountered atmospheric turbulences and severe downdrafts when the aircraft went out of control and crashed on the mountain. All three occupants were killed.

On final approach to Capahuari, the pilot lost visual contact with the ground due to a rain squall. Suddenly, the single engine aircraft struck the runway 36 surface and bounced. Out of control, it veered off runway to the left and came to rest in a ravine. Both occupants were slightly injured and the aircraft was damaged beyond repair.

Crashed in unknown circumstances at Kota Kinabalu Airport, killing all three crew members.

Crashed in unknown circumstances after takeoff from Jaspers Brush Airfield. Two occupants were killed and eight others were injured.

The single engine aircraft was dispatched at Lobos airfield for local skydiving mission. Shortly after takeoff from a grassy runway, the aircraft crashed in unknown circumstances. Two skydivers were seriously injured while six other occupants were killed.

Crashed in unknown circumstances while on approach to Ottawa Airport. The pilot, sole on board, was injured. The aircraft was on a delivery flight.